8 Inspection and maintenance
EN
36
Rittal enclosure cooling unit
Fig. 56:
Unscrew and remove the corner brackets at the top
and bottom
Half-way up, remove one spring clip from the front of
the cooling unit on both the left and right.
Fig. 57:
Remove the spring clips
Hold the cooling unit as straight as possible when re-
moving it from the mounting cut-out.
Fig. 58:
Remove the cooling unit from the mounting cut-out
Set the device down safely in a suitable place.
Next, remove the device's cover as described in sec-
tion 8.4.3 "Removing the cover".
8.4.2
Removing an externally mounted unit
Where cooling units are externally mounted on the en-
closure, only the louvred grille must be removed initially
prior to cleaning with compressed air. The rear panel in-
cluding all components can remain in the mounting cut-
out.
Remove the louvred grille as described in sec-
tion 5.3.5 "Internal mounting of the cooling unit".
Next, remove the device's cover as described in sec-
tion 8.4.3 "Removing the cover".
8.4.3
Removing the cover
Allow the unit to cool down for at least ten minutes be-
fore removing the cover.
This should allow hot surfaces inside the unit to cool
down sufficiently.
For SK 317880x and SK 317980x: Loosen the eight
screws connecting the cover to the rear panel.
Note:
Please note that when removing the louvred
grille, contrary to the illustrations shown in
section 5.3.5 "Internal mounting of the cool-
ing unit", the cooling unit is fitted on an enclo-
sure door or side panel.
Caution!
After removing the cover, there is a risk
of burn injuries from hot component sur-
faces inside the unit.
Caution!
The cooling unit is only stable while the
hood and rear wall are joined together. It
is therefore particularly important to se-
cure the rear panel to prevent it from fall-
ing before you remove the hood.
